Tweaks to the build script and building instructions

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 12.26%. Comparing base (021d05d) to head (e4d07fc). Report is 2 commits behind head on dev.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## dev #971 +/- ## ========================================== - Coverage 12.28% 12.26% -0.02% ========================================== Files 651 651 Lines 96623 96623 ========================================== - Hits 11866 11850 -16 - Misses 84757 84773 +16 ```

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